Re: [PATCH] ide write barrier support

[Manfred Spraul]

Jens wrote:

> The problem is that as far as I can see the best way to make fsync
> really work is to make the last write a barrier write. That
> automagically gets everything right for you - when the last block goes
> to disk, you know the previous ones have already. And when the last
> block completes, you know the whole lot is on platter.
Are you sure?
What prevents the io scheduler from writing the last block before other 
blocks?

--
   Manfred

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